Gehenna Dawn: Portal Wars, Book 1

Jake Taylor was a New Hampshire farm boy who wanted nothing more than to marry his girlfriend, work on the farm, and maybe one day write a great novel. But mankind was fighting the alien Tegeri and their bio-mechanical cyborg soldiers, and UN Central needed men…men to go to war on hostile worlds far from home. Jake wasn't given a choice, not a real one. He found himself torn from home and family, conscripted for life and shipped to the planet Erastus to take his place in the battle lines, never to return.

The Ten Thousand: Portal Wars II

General Jake Taylor and his army of cyborg soldiers are veterans of Erastus, a planet so brutal, so hellish, it is called Gehenna by the men sent to fight and die there. He and his comrades battled for years in the most appalling conditions human beings have ever endured, believing the entire time they were protecting Earth from bloodthirsty alien monsters. But it was all a lie, the cynical propaganda of the totalitarian regime that rules over all mankind.

Homefront: Portal Wars, Volume 3

Jake Taylor and his cyborg soldiers have fought their way from one Portal planet to another, moving steadily homeward with one goal in mind - the utter destruction of the corrupt rulers who sent them to hell to fight and die as pawns in a dishonest war, one started not by the alien enemy, but by Earth's own government, as a tool in its plot to seize total power. And now, after the fighting, the suffering, the bitter losses; finally, it is time. Time for the final invasion of Earth.